ASTM A789/A789M-02a

Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

SCOPE
1.1 This specification covers grades of nominal wall thickness, stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.  
Note 1—For tubing smaller than ½ in. [12.7 mm] in outside diameter, the elongation values given for strip specimens in Table 1 shall apply. Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in outside diameter or with walls thinner than 0.015 in. [0.4 mm].
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the Mdesignation of this specification is specified in the order.

General Information

• Status: Historical
• Publication Date: 09-Nov-2002
• ICS: 23.040.40 - Metal fittings
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.10 - Stainless and Alloy Steel Tubular Products

Relations

• Replaces: ASTM A789/A789M-02 - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
• Effective Date: 10-Nov-2002
• Replaced By: ASTM A789/A789M-04 - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
• Effective Date: 01-Mar-2004
• Referred By: ASTM A1012-10(2021) - Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral Fins
• Effective Date: 10-Nov-2002
• Referred By: ASTM A1098/A1098M-18(2022) - Standard Specification for Welded Austenitic, Ferritic, Martensitic and Duplex Stainless Steel Boiler, Superheater, Condenser, and Heat Exchanger Tubes with Textured Surface(s)
• Effective Date: 10-Nov-2002
• Referred By: ASTM A1119/A1119M-23a - Standard Specification for Welded Partially Corrugated Stainless Steel Tube for Potable Water and General Service
• Effective Date: 10-Nov-2002
• Referred By: ASTM A1016/A1016M-18a - Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes
• Effective Date: 10-Nov-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation: A 789/A 789M – 02a
Standard Specification for
Seamless and Welded Ferritic/Austenitic Stainless Steel
1
Tubing for General Service
This standard is issued under the fixed designationA 789/A 789M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
TABLE 1 Tensile and Hardness Requirements
1. Scope*
2
Tensile Yield Elongation
1.1 This specification covers grades of nominal wall thick- Hardness, max
Strength, Strength, in 2 in. or
UNS Designation
ness, stainless steel tubing for services requiring general
min, ksi min, ksi 50 mm,
Brinell HRC
corrosion resistance, with particular emphasis on resistance to [MPa] [MPa] min, %
stress corrosion cracking. These steels are susceptible to
S31803 90 [620] 65 [450] 25 290 30
S32205 95 [655] 70 [485] 25 290 30
embrittlement if used for prolonged periods at elevated tem-
S31500 92 [630] 64 [440] 30 290 30
peratures.
S32550 110 [760] 80 [550] 15 297 31
S31200 100 [690] 65 [450] 25 280 . . .
1
NOTE 1—For tubing smaller than ⁄2 in. [12.7 mm] in outside diameter,
A
S31260 100 [690] 65 [450] 25 290 30
the elongation values given for strip specimens in Table 1 shall apply.
S32001 90 [620] 65 [450] 25 290 30
1
Mechanical property requirements do not apply to tubing smaller than ⁄8
S32304
in. [3.2 mm] in outside diameter or with walls thinner than 0.015 in. [0.4 OD 1 in. [25 mm] and
Under 100 [690] 65 [450] 25 . . . . . .
mm].
OD over 1 in. [25 mm] 87 [600] 58 [400] 25 290 30
1.2 The values stated in either inch-pound units or SI units
S39274 116 [800] 80 [550] 15 310 . . .
S32750 116 [800] 80 [550] 15 300 32
are to be regarded separately as standard. Within the text, the
S32760 109 [750] 80 [550] 25 300 . . .
SI units are shown in brackets. The values stated in each
S32900 90 [620] 70 [485] 20 271 28
B
system are not exact equivalents; therefore, each system must S32950 100 [690] 70 [480] 20 290 30
S39277 120 [825] 90 [620] 25 290 30
be used independently of the other. Combining values from the
S32520 112 [770] 80 [550] 25 310 . . .
two systems may result in nonconformance with the specifi-
S32906
cation. The inch-pound units shall apply unless the M desig-
Wall below 0.40 in. 116 [800] 94 [650] 25 300 32
(10 mm)
nation of this specification is specified in the order.
Wall 0.40 in. (10 mm) 109 [750] 80 [550] 25 300 32
and above
2. Referenced Documents
S32003 90 [620] 65 [450] 25 290 30
2.1 ASTM Standards: A
Prior to A 789/A 789M – 87, the values for S31260 were: 92 ksi tensile
strength, 54 ksi yield strength, and 30 % elongation.
A 480/A 480M Specification for General Requirements for
B
Prior to A 789/A 789M – 89, the tensile strength value was 90 ksi for UNS
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
S32950.
3
Sheet, and Strip
A 1016/A 1016M Specification for General Requirements
3. Ordering Information
for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain-
4
less Steel Tubes
3.1 Orders for product under this specification should in-
4
E 527 Practice for Numbering Metals and Alloys (UNS)
clude the following, as required, to describe the desired
5
2.2 SAE Standard:
material adequately:
SAE J 1086 Practice for Numbering Metals and Alloys
3.1.1 Quantity (feet, metres, or number of lengths),
(UNS)
3.1.2 Name of product (seamless or welded tubes),
3.1.3 Grade (see Table 2),
1
3.1.4 Size (outside diameter and nominal wall thickness),
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
3.1.5 Length (specific or random),
A01.10 on Stainless and Alloy Steel Tubular Products.
3.1.6 Optional requirements (product analysis for welded
Current edition approved Nov. 10, 2002. Published December 2002. Originally
tubes, Section 8; hydrostatic test or nondestructive electric test,
approved in 1981. Last previous edition approved in 2002 as A 789/A 789M – 02.
2
Section 10),
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SA–789 in Section II of that Code.
3.1.7 Test report required (section on inspection of Specifi-
3
Annual Book of ASTM Standards, Vol 01.03.
cation A 1016/A 1016MA 1016/A 1016M),
4
Annual Book of ASTM Standards, Vol 01.01.
5
3.1.8 Specification designation, and
Available from Society of Automotive Engineers (SAE), 400 Commonwealth
Dr., Warrendale, PA 15096-0001. 3.1.9 Special requirements.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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